Journal ArticleDOI
On linear structure and phase rotation invariant properties of block M-PSK modulation codes
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Two important structural properties of block M(=2/sup '/)-ary PSK modulation codes, linear structure and phase symmetry, are investigated.Abstract:
Two important structural properties of block M(=2/sup '/)-ary PSK modulation codes, linear structure and phase symmetry, are investigated. An M-ary modulation code is first represented as a code with symbols from the integer group S/sub M-PSK/=(0,1,2,---,M-1) under modulo-M addition. Then the linear structure of block M-PSK modulation codes over S/sub M-PSK/ with respect to modulo-M vector addition is defined, and conditions are derived under which a block M-PSK modulation code is linear. Once the linear structure is developed, the phase symmetry of block M-PSK modulation codes is studied. In particular, a necessary and sufficient condition for a block M-PSK modulation code that is linear as a binary code to be invariant under 2/sup h/180 degrees /M phase rotation, for 1 >read more
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Journal ArticleDOI
Symmetry properties of multilevel coded modulation
Ezio Biglieri,Giuseppe Caire +1 more
TL;DR: The geometrical uniformity properties of signal space codes generated by multilevel coded modulation are considered and an easy-to-test criterion for finding if a given signal set obtained as the union of two orbits of the same generating group has the uniform distance property is provided.
Transactions Papers Further Results on Noncoherent Block-Coded MPSK
Ruey-Yi Wei,Yen-Ming Chen +1 more
TL;DR: A noncoherent near-optimal linear- complexity multistage decoder for NBC-MPSK is proposed and a tree-search ML decoding algorithm is investigated, which is shown to have low complexity and excellent error performance.
Journal Article
Multidimensional Trellis Coded Phase Modulation Using a Multilevel Concatenation Approach
TL;DR: The proposed technique can be used to construct good codes for both the additive white Gaussian noise (AWGN) and fading channels as is shown in the second part of this paper.
Proceedings ArticleDOI
Multidimensional Trellis Coded Phase Modulation Using A Multi-level Concatenation Approach
TL;DR: In this article, a simple and systematic technique for constructing multidimensional M-ary phase shift keying (MMK) trellis coded modulation (TCM) codes is presented.
Journal ArticleDOI
Blind Carrier Phase Recovery for General 2π/M-rotationally Symmetric Constellations
TL;DR: In this paper, a blind carrier phase recovery estimator for general 2 �/M-rotationally symmetric constellations was proposed. But this estimator was designed for general quadrature amplitude (QAM) and PSK.
References
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Channel coding with multilevel/phase signals
TL;DR: A coding technique is described which improves error performance of synchronous data links without sacrificing data rate or requiring more bandwidth by channel coding with expanded sets of multilevel/phase signals in a manner which increases free Euclidean distance.
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A new multilevel coding method using error-correcting codes
Hideki Imai,S. Hirakawa +1 more
TL;DR: A new multilevel coding method that uses several error-correcting codes that makes effective use of soft-decisions to improve the performance of decoding and is superior to other multileVEL coding systems.
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Trellis-coded modulation with redundant signal sets Part I: Introduction
TL;DR: An introduction into TCM is given, reasons for the development of TCM are reviewed, and examples of simple TCM schemes are discussed.
Journal ArticleDOI
Coset codes. II. Binary lattices and related codes
TL;DR: The family of Barnes-Wall lattices and their principal sublattices, which are useful in constructing coset codes, are generated by iteration of a simple construction called the squaring construction, and are represented by trellis diagrams that display their structure and interrelationships and that lead to efficient maximum-likelihood decoding algorithms.
Coset Codes-Part 11: Binary Lattices and Related Codes
TL;DR: The family of Barnes-Wall lattices and their principal sublattices, which are useful in con- structing coset codes, are generated by iteration of a simple construction called the "squaring construction," and the closely related Reed-Muller codes are generate by the same construction.